Hashing Module

This XQuery Module contains cryptographic hash functions.

Conventions

All functions in this module are assigned to the http://basex.org/modules/hash namespace, which is statically bound to the hash prefix.
All errors are assigned to the http://basex.org/errors namespace, which is statically bound to the bxerr prefix.

Functions

util:md5

Signatures	util:md5($value as xs:string) as xs:hexBinary
Summary	Computes the MD5 hash of the given string $value.
Examples	util:md5("") returns 'D41D8CD98F00B204E9800998ECF8427E'. util:md5('BaseX') returns '0D65185C9E296311C0A2200179E479A2'.

util:sha1

Signatures	util:sha1($value as xs:string) as xs:hexBinary
Summary	Computes the SHA-1 hash of the given string $value.
Examples	util:sha1("") returns 'DA39A3EE5E6B4B0D3255BFEF95601890AFD80709'. util:sha1("BaseX") returns '3AD5958F0F27D5AFFDCA2957560F121D0597A4ED'.

util:sha256

Signatures	util:sha256($value as xs:string) as xs:hexBinary
Summary	Computes the SHA-256 hash of the given string $value.
Examples	util:sha256("") returns 'E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855'. util:sha256("BaseX") returns '15D570763DEB75D728BB69643392873B835CCCC94A2F1E881909DA47662821A3'.

util:hash

Signatures	util:hash($value as xs:string, $algorithm as xs:string) as xs:hexBinary
Summary	Computes the hash of the given string $value, using the specified $algorithm. The following three algorihms are supported: MD5, SHA-1, and SHA-256.
Errors	HASH0001: the specified hashing algorithm is unknown.
Examples	util:md5("", "MD5") returns 'D41D8CD98F00B204E9800998ECF8427E'. util:md5("", "") raises an error.

util:hash-binary

Signatures	util:hash-binary($value as xs:string, $algorithm as basex:binary) as xs:hexBinary
Summary	Computes the hash of the given binary item (xs:base64Binary, xs:hexBinary), using the specified $algorithm. The following three algorihms are supported: MD5, SHA-1, and SHA-256.
Errors	HASH0001: the specified hashing algorithm is unknown.
Examples	util:md5(xs:hexBinary(""), "MD5") returns D41D8CD98F00B204E9800998ECF8427E.

Errors

Code	Description
HASH0001	The specified hashing algorithm is unknown.

Changelog

This module was introduced with Version 7.3.